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It’s no secret that Millennium Tower is one of the most luxuriously appointed condo buildings in town. But at this penthouse for sale, it’s not the interior that’s most impressive, but what lies just outside of it. Indeed, the 58th-floor home has unequaled views of the city—from the Boston Harbor islands, to the Custom House Tower, to the skyscrapers of the Financial District.

That’s not to say the interior isn’t a marvel of its own. The more than 3,000-square-foot unit is awash in sunlight, thanks to rows of floor-to-ceiling windows. An impressive marble kitchen opens to an indoor-outdoor balcony, and beyond it, a stately living room is warmed by a gas fireplace. One of the home’s three bathrooms, meanwhile, has a walk-in glass shower and a soaking tub overlooking the city. The building’s list of amenities is pretty lengthy (a private movie theater and restaurant are a few of them), but two included valet parking spots are the icing on the cake.